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Part No. PC-615-7 652 Oliver Street Williamsport, PA 17701 AEIO-540-L1B5D Wide Cylinder Flange Model Lycoming Aircraft Engines Parts Catalog

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Page 1: Lycoming Aircraft Engines Parts Catalog · 2017-03-14 · 2 LW-10299 3 LW-10297 4 LW-10325 5 LW-10324 6 LW-10299 7 LW-10325 8 LW-10329 9 61166 10 69164 11 69159 12 STD-1774 13 STD-213

Part No. PC-615-7652 Oliver Street

Williamsport, PA 17701

AEIO-540-L1B5DWide Cylinder Flange Model

Lycoming Aircraft EnginesParts Catalog

Page 2: Lycoming Aircraft Engines Parts Catalog · 2017-03-14 · 2 LW-10299 3 LW-10297 4 LW-10325 5 LW-10324 6 LW-10299 7 LW-10325 8 LW-10329 9 61166 10 69164 11 69159 12 STD-1774 13 STD-213
Page 3: Lycoming Aircraft Engines Parts Catalog · 2017-03-14 · 2 LW-10299 3 LW-10297 4 LW-10325 5 LW-10324 6 LW-10299 7 LW-10325 8 LW-10329 9 61166 10 69164 11 69159 12 STD-1774 13 STD-213

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINIE

INTRODUCTION

This illustrated parts catalog contains a complete parts listing for the Avco Lycoming AEIO-540-L1B5D widecylinder flange model aircraft engines.

Major assembly and sub-assembly parts of the engines are listed in the Group Assembly sections in thegeneral sequence of engine build up.

A Service Kits section and Oversize and Undersize Parts List are included to aid in ordering parts as necessaryduring overhaul.

The Numerical Index is provided for convenience in finding parts when only the part number is known.

Parts coverage of Vendor Accessories used on Avco Lycoming engines may be found in the appropriate Ven-dor's Parts Catalog. A list of these publications appear in the latest edition of Service Letter No. L114.

NOTE

The illustrations, pictures and drawings shown in this publication are typical of the subject matter they por-tray.

This catalog, when used in conjunction with the appropriate overhaul manual, shall be used for parts identifica-tion only. Under no circumstances shall this catalog be used as an assembly or installation document.

Any reference in this document to a suppliers/parts manufacturers' product, by name, trademark, partnumber or other description is solely for the purposes of identification and does not indicate or infer that AvcoLycoming accepts responsibility for quality control and/or airworthiness of parts which do not pass through theAvco Lycoming quality control system.

SERVICE BULLETINS, INSTRUCTIONS AND LETTERS

Although the information contained in this parts catalog is up-to-date at time of publication, users are urged tokeep abreast of later information through all Avco Lycoming distributors or from the factory by subscription.Consult the latest edition of Service Letter No. L114 for subscription information.

HOW TO ORDER PARTS

In ordering parts for your engine, observe the following instructions which will expedite shipment of correctparts required without delay.

a. Always specify the model and serial number of your engine.

h. Always specify Part Number, Nomenclature and quantity required.

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Page 4: Lycoming Aircraft Engines Parts Catalog · 2017-03-14 · 2 LW-10299 3 LW-10297 4 LW-10325 5 LW-10324 6 LW-10299 7 LW-10325 8 LW-10329 9 61166 10 69164 11 69159 12 STD-1774 13 STD-213

Avco Lycoming Williamsport Division

SECTION

WIDE

TABLE OF CONTENTS

Introduction.. .............................................................................. TableofContents ............................................................................ Oversize and Undersize Parts ..................................................................

1. CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUP Crankcase Assembly ................................. Oil Level Gage and Engine Mounting Brackets ............ Crankcase Related Parts .............................. Crankshaft and Related Parts .......................... Camshaft Assembly. ................................. Crankshaft and Fuel Pump Idler Gears .................. Propeller Governor Drive Assembly ..................... Crankcase Attaching Parts ............................

.

2. ACCESSORY HOUSING AND RELATED PARTS Accessory Housing Assembly ............................................................. Oil Pump Assembly and Accessory Housing Attaching Parts Fuel Pump Assembly. ................................................................... Oil Filter Assembly and Oil Cooler Bypass Valve Vacuum and Hydraulic Pump Drives, Oil Cooler and Breather Fittings

3. CYLINDER, PISTON AND VALVE TRAIN Connecting Rods, Piston and Ring Assemblies Cylinder Assembly. ..................................................................... ValveAssembly.. ..................................................................... Cylinder Related Parts. ..................................................................

4. IGNITION SYSTEM Magnetos, Drives, Harnesses and Spark Plugs . . .

5. ELECTRICAL COMPONENTS Alternator and Belt .................................. Starter Motor and Attaching Parts ... ................. Alternator Mounting and Attaching Parts ...............

6. OIL SUMP AND INDUCTION SYSTEM Oil Sump and Induction Housing Assembly .............. Intake Pipe Assembly ............... ................ Fuel Injector, Fuel Manifold and Injection Nozzles

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.SERVICEKITSECTION ,,,,,...,....,.,.,.,,,,,,,..,.,._,,,,.,...,.,......._...,,,,,.._._

8. NUMERICAL INDEX

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Page 5: Lycoming Aircraft Engines Parts Catalog · 2017-03-14 · 2 LW-10299 3 LW-10297 4 LW-10325 5 LW-10324 6 LW-10299 7 LW-10325 8 LW-10329 9 61166 10 69164 11 69159 12 STD-1774 13 STD-213

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Oversize and Undersize Parts Listing

PART NO. DESCRIPTION OVERSIZE UNDERSIZE

P02 P05

.002 .005

X

P10 P15 P20 P30 P40 P50 M03 M06 M10.010 .015 .020 .030 .040 .050 .003 .006 .010

X66670

66796

69796

71903

72155-S

73810

73857

74241

74309

75656-S

75657-S

78443

LW-11956-S

LW-11958-S

LW-12688

LW-13683

LW-13885

LW-14830

LW-15628

STD-2078

16T19468

BUSHING

INSERT

DOWEL

BUSHING, Counterweight

BUSHING

BUSHING

RING

RING

BEARING

BUSHING

BUSHING

SEAL

GUIDE

GUIDE

SEAT

BEARING

BEARING

BEARING

SEAL

DOWEL

SEAT

X

X

SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1143 FOR APPLICATION.

X X X ISEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1142 FOR APPLICATION.

X X

X

X X X* X

X X X X

X X X

SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1324 FOR APPLICATION.

SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1256 FOR APPLICATION.

SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1256 FOR APPLICATION.

X X X

x X X X XX X X XSEE LATEST EDITION OF SERVICE INSTRUCTION N0. 1324 FOR APPLICATION

X X X X X XX X XX

Studs available in P03, P07 and P12.* Also available in P10 oversize.

NOTE

When ordering oversize and undersize parts, be sure to specify the required oversize and undersize dimension along with the properpart number. For example, to order bearing LW-13885 in .003 undersize, order part number LW-13885-M3. Oversize code letter is

P while undersize code letter is "M". These letters are then followed by the number designating the size in thousandths of aninch.

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Avco LycomingWilliamsport Division

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ASSEMBLY

FIG.REF.

1PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 11F20020-D12 31C-123 31C-134 38-135 50-156 38-227 38D-178 38-169 69796

10 STD-51411 STD-55712 7215813 STD-133914 110215 31C-16

31C-17*31C-18*

16 7377217 65007**

CRANKCASE ASSEMBLYSTUD, 5/16-18 x 1-1/2 long (starter pad, rear)STUD, 5/16-18 x 1-5/8 long (starter pad, front)STUD, 3/8-16 x 1-5/8 long (cylinder pad)STUD, 1/2-20 x 1-7/8 long (cylinder pad)STUD, 3/8-16 x 2-3/4 long (nose of case)STUD, 3/8-16 x 2-1/8 long (rear above cam)STUD, 3/8-16 x 2.00 long (engine mount)DOWEL, Crankshaft (front bearing)DOWEL, 5/16 dia. x 1/2 long (accessory face)DOWEL, 1/2 dia. x 11/16 long (between halves)BUSHING, Governor drive idler shaft

PLUG, 1/16-27 pipe (governor pad)PLUG, 1/8 pipe (oil pressure)STUD, 5/16-18 x 2.00 longSTUD, 5/16-18 x 2-1/8 longSTUD, 5/16-18 x 2-1/4 longNOZZLE ASSY., Piston coolingRETAINER, Shroud tube

121

2412

1182221114446

12

* Special stud length at governor pad.* * Early crankcases used item No. 17 retainer, P/N 65007, installed in shroud tube bosses. Later crankcases are machined as a product im-

provement to accept shroud tubes without retainers. This part is a service item only.

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8-

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Figure 1. CRANKCASE ASSEMBLY

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPOIL LEVEL GAGE AND ENGINE MOUNTING BRACKETS

FIG.REF.

2PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 704572 756753 740654 LW-14799

LW-16783-45 723066 STD-337 STD-6788 STD-596

GASKET, Oil filler extensionEXTENSION, Oil filler (short)"0" RING, Oil level gageGAGE ASSY., Oil levelGAGE ASSY., Oil levelBRACKET, Engine mounting (dynafocal)WASHER, 3/8 plainWASHER, 3/8 lock, internal teethNUT, 3/8-24 plain

111114

161616

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8-

Avco LycomingWilliamsport Division

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

-4

1

Figure 2. OIL LEVEL GAGE AND ENGINE MOUNTING BRACKETS

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE RELATED PARTS

FIG.REF.

3PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 1028-B2 61084*

LW-11713*68668*77467*LW-18085*

3 STD-10454 778085 LW-13683

LW-148306 LW-138857 LW-15628 *

78443* *8 720919 72877

BALL, 11/16 dia. iSPRING, Oil pressure relief valveSPRING, Oil pressure relief valveSPRING, Oil pressure relief valveSPRING, Oil pressure relief valveSPRING, Oil pressure relief valveGASKET, 1-1/4 I.D. x 1-1/2 O.D. x 3/32 annularVALVE ASSY., Oil pressure relief, adl.BEARING, CrankshaftBEARING, Crankshaft (alternate)BEARING, Crankshaft, frontSEAL, Crankshaft oil, solidSEAL, Crankshaft oil, splitRING, Oil seal, 23/64 I.D. x 7/64 dia. sectionBODY, Hydraulic tappet

11111111662112

12

* Select spring to give a minimum of three threads exposed on adjusting screw to allow field adjustment. Reference latest revision ofSSP-1776, Part 1 for spring identification.

** Refer to latest edition of Service Instruction No. 1324 for installation.

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

8

Figure 3. CRANKCASE RELATED PARTS

1-6

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT AND RELATED PARTS

FIG.REF.

4PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-177832 LW-177583 STD-12114 738105 609456 75656-S7 72155-S8 75657-S9 STD-2078

10 LW-19210*11 7190312 76788*13 73648*14 LW-1482015 7190716 13S19649**17 LW-1033218 AN8-14A19 7757920 72566

CRANKSHAFT AND COUNTERWEIGHT ASSEMBLYCRANKSHAFT AND PLUG ASSEMBLY

PLUG, 2.00 dia. expansionBUSHING, Crankshaft dynamic counterweightPLUG, 1-1/4 dia.BUSHING, Propeller flange, longBUSHING, Propeller flange, shortBUSHING, Propeller flange, indexingDOWEL, 3/8 O.D. x 1/2 long

COUNTERWEIGHT ASSEMBLYBUSHING, Dynamic counterweight

ROLLER, Dynamic counterweight, 6.3 orderROLLER, Dynamic counterweight, 5.1 orderRING, Internal retainingWASHER, Dynamic counterweight

GEAR, CrankshaftLOCKPLATE, Crankshaft gearBOLT, 1/2-20 x 1-19/32 longSUPPORT ASSY., Starter ring gear, 12/14 pitch

GEAR, Starter ring, 12/14 pitch

11141411128228

8

1

1111

* See latest edition of Avco Lycoming Service Instruction No. 1012 for proper counterweight and roller location.** See latest edition of Avco Lycoming Service Bulletin No. 475 for proper installation.

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1

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

2-

5

NO. 1CRANKPIN

INDEX

151

113

514

Figure 4. CRANKSHAFT AND RELATED PARTS

1-8

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCAMSHAFT ASSEMBLY

FIG.REF.

5PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-193402 761183 761554 LW-186675 MS16625-1081

CAMSHAFT ASSEMBLYSPACER, Tachometer shaft centering

SHAFT ASSY., TachometerPIN, 3/16 dia. x 2-21/64 long

RING, Internal retaining

11111

Figure 5. CAMSHAFT ASSEMBLY

1-9

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2

13

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT AND FUEL PUMP IDLER GEARS

FIG.REF.

6PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-102922 LW-102993 LW-102974 LW-103255 LW-103246 LW-102997 LW-103258 LW-103299 61166

10 6916411 6915912 STD-177413 STD-213

GEAR ASSY., Crankshaft idler, plainSHAFT, Crankshaft idler gear

GEAR ASSY., Crankshaft idler (heavy)SPACER, Idler shaft

GEAR ASSY., Fuel pump idlerSHAFT, Crankshaft idler gearSPACER, Idler gear

SHAFTGEAR ASSY., Fuel pump driveTHRUST BUTTON

GASKET, Fuel pump adapterADAPTER ASSY., Fuel pump drive

PIN, 1/8 dia. x 1/4 longSEAL, Oil, 3/4 I.D. x 1-3/8 O.D.

1111111111111

Figure 6. CRANKSHAFT AND FUEL PUMP IDLER GEARS

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Avco LycomingWilliamsport Division

CRANK

FIG.REF. PART

7 NUMBER

1 LW-10442 GEAR, Prope2 LW-14021 SHAFT, Prop3 LW-10541 GEAR ASSY.4 77872 BUSHING,5 STD-19 DOWEL, 36 STD-798 DOWEL, 37 73249 WASHER, Th

73250 WASHER, Th73251 WASHER, Th73252 WASHER, Th

8 AN565B1032H5 SET SCREW,9 70455 GASKET, 25,

10 LW-13896 PLUG, 3/4-111 72053 GASKET, Governor12 72378 COVER, Governor13 STD-35 WASHER, 5/

STD-35 WASHER, 5/14 STD-475 WASHER, 5/15 STD-1410 NUT, 5/16-1

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CASE, CRANKSHAFT AND CAMSHAFT GROUPROPELLER GOVERNOR DRIVE ASSEMBLY

QUANTITYPER

ASSEMBLYDESCRIPTION

Iler governor driveeller governor idler gear

Propeller governor idlerPropeller governor idler gear

/32 dia. x 7/32 long/32 dia. x 9/32 longrust (.0585-.0595) thickrust (.062-.063) thick

Thrust (.0655-.0665) thickThrust (.069-.070) thick

No. 10-32 x 5/16 long/32 I.D. x 1-1/8 O.D. x 1/16 thick6, hex. hd.

vernorvernor drive16 plain (Woodward governor)

/16 plain (AN governor)/16 lock, internal teeth8 plain

111211

ARARARAR

11111

20444

1-11

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-15

Avco LycomingWilliamsport Division

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

143

2

1

98

-5

4

Figure 7. PROPELLER GOVERNOR DRIVE ASSEMBLY

1-12

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ATTACHING PARTS

FIG.REF.

8PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-25-1.502 STD-83 608034 LW-25-1.755 LW-25-1.136 STD-1607 STD-14118 LW-25S1.509 STD-8

10 STD-140911 STD-3312 STD-87213 AN6-34A14 STD-3315 STD-67816 STD-59617 76220

BOLT, 1/4-20 x 1-1/2 long, hex. hd.WASHER, 1/4 plainSTRAP, LiftingBOLT, 1/4-20 x 1-3/4 long, hex. hd.BOLT, 1/4-20 x 1-1/8 long, hex. hd.WASHER, 1/4 lock, internal teethNUT, 1/4-20 plainBOLT, 1/4-20 x 1-1/2 long, hex. hd., drive endWASHER, 1/4 plain (max. 18)NUT, 1/4-20 slotted shearWASHER, 3/8 plainNUT, 3/8-24 slottedBOLT, 3/8-24 x 3-1/2 long, hex. hd.WASHER, 3/8 plainWASHER, 3/8 lock, internal teethNUT, 3/8-24 plainSTUD, 1/2-20 x 10-45/64 long

1127224

16126

AR61113228

1-13

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

4,6,7,9

1,12

8,9,101,2,6

Figure 8. CRANKCASE ATTACHING PARTS

1-14

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ACCESSORY HOUSING AND RELATED PARTSACCESSORY HOUSING ASSEMBLY

FIG.REF.

9PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 738182 LW-109053 25C-124 31C-195 31CD-206 31C-137 STD-13398 LW-103419 MS124703

10 LW-12589

GASKET, Accessory housing iHOUSING ASSY., Accessory

STUD, 1/4-20 x 1-1/2 longSTUD, 5/16-18 x 2-3/8 longSTUD, 5/16-18 x 2-1/2 long, drilledSTUD, 5/16-18 x 1-5/8 long (mag. pad)PLUG, 1/16 NPT, Allen headINSERT, 1.00-14 Hell-coil x 3/8 longINSERT, 3/4-16 Heli-coil x 1-1/8 longINSERT, 5/8-18 Heli-coil x 3/8 long

1184321111

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1

9

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

6

4

Figure 9. ACCESSORY HOUSING ASSEMBLY

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ACCESSORY HOUSING AND RELATED PARTSOIL PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS

FIG.REF.

10PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-103442 603293 STD-7144 LW-103185 611666 612977 612988 STD-359 STD-1420

10 LW-1426011 STD-812 STD-16013 LW-25-0.9414 LW-25-1.2515 LW-25-0.81

BODY ASSY., Oil pumpSHAFT, Oil pump idlerPIN, 1/8 dia. x 1.00 long, cotter

GEAR ASSY., Oil pump driveTHRUST BUTTON, Oil pump drive gear

IMPELLER, Oil pump drivingIMPELLER, Oil pump drivenWASHER, 5/16 plainNUT, 5/16-18 slottedSEAL, Tachometer drive, oilWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 15/16 long, hex. hd.BOLT, 1/4-20 x 1-1/4 long, hex. hd.BOLT, 1/4-20 x 13/16 long, hex. hd.

1111111331

1212912

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Avco LycomingWilliamsport Division

11,12,15

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

11,12,13

6

1,12,14

1,12,13

7-2-

83

5

Figure 10. OIL PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS

2-4

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Avco LycomingWilliamsport Division

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ACCESSORY HOUSING AND RELATED PARTSFUEL PUMP ASSEMBLY

FIG.REF.11

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-107992 LW-125343 STD-354 STD-4755 STD-1410

SPACER, Fuel pump insulatingFUEL PUMP, Lear Siegler (RG17980P)WASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT, 5/16-18 plain

11444

Figure 11. FUEL PUMP ASSEMBLY

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* See latest edition of Avco Lycoming SSP-885 for oil filter kits and replacement filters.

Avco Lycoming IWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ACCESSORY HOUSING AND RELATED PARTSOIL FILTER ASSEMBLY AND OIL COOLER BYPASS VALVE

FIG.REF.12

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-103212 765393 LW-103204 MS16625-11005 54D19627*6 LW-13904*7 53E196008 76510

SPRING, Oil filter bypass valveSEAT, Oil relief valveSLEEVE, Oil filter bypass valveRING, Internal retainingOIL FILTER, Avco (short, no stud)KIT, Converter plate, oil filterVALVE ASSY., Temp. control oil cooler bypass

GASKET, Valve assembly

11111111

Figure 12. OIL FILTER ASSEMBLY AND OIL COOLER BYPASS VALVE

2-6

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Avco LycomingWilliamsport Division

AEIO-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ACCESSORY HOUSING AND RELATED PARTSVACUUM AND HYDRAULIC PUMP DRIVES, OIL COOLER AND BREATHER FITTINGS

FIG.REF.13

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-103132 715963 STD-22174 83135 604306 STD-87 STD-1608 STD-14119 LW-10303**

10 831311 STD-812 STD-16013 STD-141114 AN816-10D*15 AN816-10-12D16 MS29512-1017 AN814-10L18 LW-1417819 MS29512-1020 LW-1482821 62732

GEAR ASSY., Accessory driveniWASHER, Accessory drive gearOIL SEAL, 7/8 I.D. x 1-1/2 O.D. x 5/16 wideGASKET, Hydraulic pumpCOVER, Hydraulic pumpWASHER, 1/4 plainWASHER, 1/4 internal lockNUT, 1/4-20 plainPLUG, Hydraulic pump driveGASKET, Vacuum pumpWASHER, 1/4 plainWASHER, 1/4 internal lockNUT, 1/4-20 plainNIPPLE, 5/8 flared tube & 1/2 NPTFITTING, BreatherSEAL, Oil, 3/32 section x 45/64 I.D.PLUG, 7/8-14 thread (upper boss)PLUG, 7/8-14 thread (lower boss)SEAL, Oil, 3/32 section x 45/64 I.D.REDUCER, 1/2 tubing to 5/8 tubingCAP, Tachometer drive

111114441144411211221

* Used with breather adapter with oil pick-up. See Figure 22 for list and* * Used on engines not employing rear propeller governor drive.

illustration covering aerobatic components.

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Breather Adapter(See Figure 22)

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Figure 13. VACUUM AND HYDRAULIC PUMP DRIVES, OIL COOLER AND BREATHER FITTINGS

2-8

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CYLINDER, PISTON AND VALVE TRAINCONNECTING RODS, PISTON AND RING ASSEMBLIES

FIG.REF.

14PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-193322 LW-139233 LW-125964 LW-121865 74309

LW-149546 LW-10207-S7 LW-14077*

LW-140788 LW-11775*

608289 74241

10 73857

CONNECTING ROD ASSEMBLY'BUSHING, Connecting rod, upperBOLT, Connecting rodNUT, Connecting rod

BEARING, Connecting rodBEARING, Connecting rod (alternate)PISTON. Compression ratio 8.7:1PIN, PistonPIN, PistonPLUG, Piston pinPLUG, Piston pinRING, Piston compressionRING, Piston, oil regulating (expander type)

66

12121212666

1212126

* Piloted piston pin plug.

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Avco Lycoming TEXTRONWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

-6

00

Figure 14. CONNECTING RODS, PISTON AND RING ASSEMBLIES

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Avco LycomingWilliamsport Division

FIG.REF. PART

15 NUMBER

1 LW-12993 CYLINDER A2 LW-12688 SEAT, Inta3 16T19468 SEAT, Exh4 LW-11956-S* GUIDE, Va5 LW-11958-S** GUIDE, Va6 66796 INSERT, S7 STD-1872 INSERT, 18 31C-12 STUD, 5/9 25C-8 STUD, 1/4

10 66570 BUSHING,11 MS20823-6D ELBOW, 312 72343 STABILIZE13 72344 STABILIZE14 LW-19298 RING, Guide15 LW-19299 RING, Guide16 1102* PLUG, 1/8-217 STD-35 WASHER, 5/18 STD-475 WASHER, 5/19 STD-1410 NUT, 5/16

AEID-540-LIB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CYLINDER, PISTON AND VALVE TRAINCYLINDER ASSEMBLY

QUANTITYPER

ASSEMBLYDESCRIPTION

ND HEAD ASSEMBLYke valveaust valvelve intake, grooved (flangeless)lve exhaust, grooved (flangeless)park plug/8-27 Heli-coil, taper pipe thd.16-18 x 1-1/2 long4-20 x 1.00 longRocker shaft

/8 flared tube & 1/4 pipe thd., 45°

R, Cylinder head fins, 15 teethR, Cylinder head fins, 26 teethretaining, intakeretaining, exhaust27 NPT, Allen head/16 plain, exhaust flange attaching/16 lock, internal teeth, exhaust flange attachingplain, exhaust flange attaching

66666

1212122424666666

121212

* Item No. 14 valve guide ring P/N LW-19298 must be ordered separately when ordering this part. Refer to latest edition of Service Instruc-tion No. 1256.

** Item No. 15 valve guide ring P/N LW-19299 must be ordered separately when ordering this part. Refer to latest edition of Service Instruc-tion No. 1256.

* Assemble in cylinder head.

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3

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

2

Figure 15. CYLINDER ASSEMBLY

3-4

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CYLINDER, PISTON AND VALVE TRAINVALVE ASSEMBLY

FIG.REF.

16PART

NUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-136222 LW-167403 LW-117974 LW-117965 LW-133226 695327 LW-164758 720509 62388

10 MS13997-311 MS13998-312 7829013 7852414 7225515 LW-1307716 66728*17 6150318 LW-1866119 73455**

73456* *73457* *73458* *73555* *73556* *73557* *73558* *

20 6711321 6711422 6711223 6711424 7154925 72626

VALVE, Intake (small diameter iintake rotator)VALVE, Exhaust (nimonic)SPRING, Valve, innerSPRING, Valve, outerSEAT, Valve spring, lower intake & exhaustSEAT, Valve spring, upper intakeSEAT, Valve spring, upper exhaust (rotator)KEY, Valve intakeCAP, Valve stemKEY, Valve exhaust (rotator type)CAP, Valve stem, exhaust (rotator type)PLUNGER ASSY., Hydraulic tappetSOCKET, Push rod, hydraulic tappetSHROUD TUBE ASSY., Push rodSPRING, Shroud tubeWASHER, 25/32 I.D. x 1-1/4 O.D. x 1/32 thick (max. 24)SLEEVE, Shroud tube sealSEAL, Shroud tubeROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROD ASSY., Push (a total of 12 required)ROCKER ASSY., Intake valve

BUSHING, Valve rockerROCKER ASSY., Exhaust valve

BUSHING, Valve rockerWASHER, Valve rockerSHAFT, Valve rocker

66

12121266

126

126

12121224AR1224ARARARARARARARAR

6666

1212

* See latest edition of Avco Lycoming Service Instruction No. 1284 for application of P/N 66728 washer.** See latest edition of Avco Lycoming Service Instruction No. 1060 for complete push rod application.

3-5

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Williamsport Division

1816-

2

1

Avco Lycoming AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

10

11

Figure 16. VALVE ASSEMBLY

3-6

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Avco LycomingWilliamsport Division

FIG.REF. PART17 NUMBER

1 67193 GASKET, Rocker box cover2 68795 COVER ASSY.3 STD-1925 SCREW, 1/4-4 74494 PLATE, Spark5 71481 RING, Oil seal6 77906 SPACER, 33/7 74887 SPACER, 33/8 383-B NUT, 3/8-249 STD-2090 NUT, 1/2-20

10 STD-684 NIPPLE, Straight11 STD-2180 HOSE, 3/8 I.12 LW-15592-5-05 CLAMP, Hose13 72702 TUBE ASSY.,14 72703 TUBE ASSY.,15 73027 TUBE ASSY.,16 75338 BAFFLE ASSY

LW-13430* BAFFLE ASSY17 71610 HOOK, Intercylinder18 71611 RETAINER, In19 72834 COVER, Baffle20 STD-692 SCREW, No.21 STD-670 NUT, No. 10-22 65614 PLUG, Baffle23 STD-251 WASHER, No.24 STD-1686 SCREW, No.25 AN931-14-20 GROMMET, 7

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CYLINDER, PISTON AND VALVE TRAINCYLINDER RELATED PARTS

QUANTITYPER

ASSEMBLYDESCRIPTION

Rocker box cover, Rocker box20 x 5/8 long, pan. hd., self-lockingplug reach caution3/32 dia. section x 4-27/32 1.D.

64 I.D. x 7/8 O.D. x 1/8 thick (rear of crankcase)64 I.D. x 7/8 0.D. x 3/8 thick (front of crankcase)plainplainght, 3/8 I.D. hoseD. x 1-13/16 long

Cyl. head oil drain, cyl. no. 1Cyl. head oil drain, cyl. no. 2Cyl. head oil drain, cyls. no. 3, 4, 5, 6., Intercylinder., Intercylinderylinder baffle retainertercylinder bafflee ignition cable hole10-32 x 1/2 long, rd. hd.32 self-lockingattaching10 lock, internal teeth

10-32 x 7/16 long, fill. hd./8 1.D. x 1-5/8 O.D. x 7/16 thick

66

486622

242866

1211431444884441

* Assemble between No. 2 and No. 4 cylinders.

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

-18

Figure 17. CYLINDER RELATED PARTS

3-8

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

IGNITION SYSTEMMAGNETOS, DRIVES, HARNESSES AND SPARK PLUGS

FIG.REF.18

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-138992 LW-136413 LW-126814 LW-685126-1075 LW-682560-136 LW-684602-3037 66M193858 STD-4759 STD-1410

10 LW-620026-211 LW-1405712 STD-813 LW-620028-214 LW-620028-315 LW-620029-616 LW-620029-617 LW-620037-418 LW-620036-419 LW-620032-720 LW-1487521 STD-69222 STD-67023 LW-16266-10-7524 7673425 STD-69626 STD-187427 STD-192528 STD-202929 1182-D4*30 LW-382698

GEAR, Retainer, magneto driveCUSHION, Magneto driveGASKET, MagnetoMAGNETO IGNITION SYSTEM (D6LN-3000)

MAGNETO, IgnitionHARNESS, Ignition

CLAMP, MagnetoWASHER, 5/16 lock, internal teethNUT, 5/16-18 plainCLIP, One wire for 1/4 screw (bottom leads)CLIP, One wire for 1/4 screw (top leads)WASHER, 1/4 plainCLIP, Two wire for 1/4 screw (bottom leads)CLIP, Two wire for 1/4 screw (top leads)CLIP, Three wire for No. 10-32 screw (bottom leads)CLAMP, Three wire (bottom leads)CLIP, Six wire for No. 10-32 screwCLIP, Six wire for No. 10-32 screwCLAMP, Ignition harnessBRACKET, ExtensionSCREW, No. 10-32NUT, Self-lockingCLAMPZIP STRAPWASHER, 1/4 plain (thin)SCREW, 1/4-20 x 13/16 longSCREW, 1/4-20 self-lockingBOLT, 1/4-20 x 1-1/8 longSPARK PLUG, Champion (RHM38E)KIT, Magneto ground terminal

12111122242

1412121111221

26AR

722

122

* Item No. 29 spark plug is used in current production only. Additional spark plugs are available for this engine. See latest edition of AvcoLycoming Service Instruction No. 1042 for complete listing of all approved spark plugs.

NOTE

Individual spark plug leads may be replaced by ordering either 10-720633-48 (4B, 6B, 4T, 6T) or10-720633-78 (1El, 2B, 3B, 5B, T, 2T, 3T, 5T).

4-1

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26,25,1

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

2,26,25

28

Figure 18. MAGNETOS, DRIVES, HARNESSES AND SPARK PLUGS

4-2

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ELECTRICAL COMPONENTSALTERNATOR AND BELT

FIG.REF.19

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-143242 76026

ALTERNATOR, 24 volt, 70 amp,iexternally grounded, (ALU-8421)BELT, Alternator drive, 3/8 wide

11

NOTE

See latest edition of Avco Lycoming Service Instruction No. 1154 for complete listing of FAA approved starters,generators, alternators, regulators and relays.

Figure 19. ALTERNATOR AND BELT

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Avco LycomingWilliamsport Division

S

FIG.REF. PART20 NUMBER

1 LW-15571 STARTER. 12LW-15572 STARTER, 24

2 STD-35 WASHER, 5/3 STD-475 WASHER, 5/4 LW-31-1 16 BOLT, 5/16-5 STD-1410 NUT, 5/16-1

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ELECTRICAL COMPONENTSTARTER MOTOR AND ATTACHING PARTS

QUANTITYPER

ASSEMBLYDESCRIPTION

volt (3.38:1 internal reduction, 12/14 pinion) (MZ-4222)volt (3.38:1 internal reduction, 12/14 pinion) (MHB-4016)

16 plain16 lock, internal teeth18 x 1-5/32 long, hex. hd.8 plain

1

44413

NOTE

See latest edition of Avco Lycoming Service Instruction No. 1154 for complete listing of FAA approved starters,generators, alternators, regulators and relays.

Figure 20. STARTER MOTOR AND ATTACHING PARTS

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Avco LycomingWilliamsport Division

ALTERNATOR

FIG.REF. PART21 NUMBER

1 07A19474 BRACKET, Alt2 73383 LOCKPLATE,3 LW-31-0.94 BOLT, 5/16-14 75380 LINK, Alternal5 STD-35 WASHER, 5/166 LW-31H.75 BOLT, 5/16-17 STD-1727 WASHER, Plain8 LW-31H.75 BOLT, 5/16-19 74323 STRUT, Alterr

10 LW-31H.75 BOLT, 5/16-111 STD-690 WASHER, 13/12 AN6-14 BOLT, 3/8-2413 STD-690 WASHER, 13/14 STD-872 NUT, 3/8-2415 STD-713 PIN, Cotter, 316 AN6-16 BOLT, 3/8-2417 76534 SHIM, 1-1/818 STD-690 WASHER, 13/19 STD-872 NUT, 3/8-2420 STD-713 PIN, Cotter, 3

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

ELECTRICAL COMPONENTSMOUNTING AND ATTACHING PARTS

QUANTITYPER

ASSEMBLYDESCRIPTION

ernator5/16 bolt x 1.00 spacing8 x 15/16 long, hex. hd.tor adjusting16 plain8 x 3/4 long, hex. hd., drilled

in, 3/4 O.D. x 11/32 I.D. x 1/8 thick8 x 3/4 long, hex. hd., drilled

nator support8 x 3/4 long, hex. hd., drilled/16 O.D. x 25/64 I.D. x 1/16 thick4 x 1-37/64 long, hex. hd., drilled end/16 O.D. x 25/64 I.D. x 1/16 thickslotted/32 dia. x 3/4 longI x 1-53/64 long, hex. hd., drilled endO.D. x 13/32 I.D. x .005 thick/16 O.D. x 25/64 I.D. x 1/16 thickslotted/32 dia. x 3/4 long

1121111111

AR1

AR111

ARAR

11

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Figure 21. ALTERNATOR MOUNTING AND ATTACHING PARTS

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

OIL SUMP AND INDUCTION SYSTEMOIL SUMP AND INDUCTION HOUSING ASSEMBLY

FIG.REF.22

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 LW-133062 LW-169753 LW-180614 STD-4255 STD-6706 25C-117 38-158 STD-7849 STD-8

10 STD-16011 LW-25-1.1312 LW-25-1.0013 STD-141114 STD-55115 LW-1689916 STD-116417 110218 STD-117319 STD-820 STD-16021 STD-202622 STD-202523 7544424 LW-1633925 STD-127226 7764427 77155*28 LW-16918 *29 LW-1374930 LW-1375031 LW-16878

GASKET, Oil sumpSUMP AND BAFFLE ASSY., Oil

BOLT, No. 10-32 self-sealingWASHER, No. 10 plainLOCKNUT, No. 10-32STUD, 1/4 x 1-3/8 longSTUD, 3/8-16 x 1-7/8 longPLUG, 3/8-18 NPT, Allen head

WASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 1-1/8 long, hex. hd.BOLT, 1/4-20 x 1.00 long, hex. hd.NUT, 1/4-20 plainPLUG, 1/2-14 NPT, sq. hd., drilledHOUSING ASSY., Induction

INSERT, 5/16-18 x 5/8 long, Heli-coilPLUG, 1/8-27 NPT, Allen headINSERT, 1/4-20 x 1/2 long, Heli-coil

WASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 NC-3 x 3-7/8 long, hex. hd.BOLT, 1/4-20 NC-3 x 2-7/16 long, hex. hd.ADAPTER ASSY., Fuel drain valveADAPTER, Oil screen, 1.50-18 to 7/8-14 thd.GASKET, 1-1/2 I.D. x 1-3/4 O.D. x 3/32 thickSCREEN, Oil suctionELBOW, 5/8 flared tube & 13/16 NPT, 90°

FITTING, Sump, oil return, 90°

OIL SEPARATOROIL VALVEADAPTER, Breather

11666481

4427176

21114444422211121111

* Assemble one elbow in oil return boss located at center rear of sump and to the left parallel with sump flange. Assemble one elbow in oilsuction boss located at right rear of sump with fitting end down and 40° to the left of vertical.

** Assemble fitting with fitting end to left of engine and 45° towards rear.

6-1

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29

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

28

30

Figure 22. OIL SUMP AND INDUCTION HOUSING ASSEMBLY

6-2

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Williamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

OIL SUMP AND INDUCTION SYSTEMINTAKE PIPE ASSEMBLY

FIG.REF.23

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 727112 LW-16341

LW-18641 *3 LW-163424 LW-163435 LW-163446 LW-163457 LW-167688 719739 74360

10 STD-811 STD-16012 LW-25-1.25

RING, Seal, intake pipesPIPE, Inlake, cylinder No 1PIPE, Intake, cylinder No. 1PIPE, Intake, cylinder No. 2PIPE, Intake, cylinder No. 3PIPE, Intake, cylinder No 4PIPE, Intake, cylinder No. 5PIPE, Intake, cylinder No. 6GASKET, 2 bolt flange, 1-7/8 I.D.FLANGE, Intake pipe, upperWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT, 1/4-20 x 1-1/4 long, hex. hd.

61

1

11

116612

1212

* Customer request, change in No. 1 cylinder intake pipe.

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7-

Avco Lycoming IWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

11

6

Figure 23. INTAKE PIPE ASSEMBLY

6-4

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

OIL SUMP AND INDUCTION SYSTEMFUEL INJECTOR, FUEL MANIFOLD AND INJECTION NOZZLES

FIG.REF.24

PARTNUMBER

QUANTITYPER

ASSEMBLYDESCRIPTION

1 730322 77442

LW-18066*3 MS29512-6**4 AN919-6**5 76304*6 STD-357 STD-4758 LW-31-1.319 LW-18265

10 7741811 MS20822-412 STD-14813 LW-1260414 7396615 7396516 STD-25117 STD-8218 LW-12098-0-20019 LW-12098-0-17020 LW-16266-10-7521 LW-16266-10-1322 STD-86023 STD-42524 STD-67025 7313626 LW-12798-4S24227 7427828 STD-189129 LW-16266-25-6330 STD-86031 STD-69232 STD-42533 STD-67034 LW-16266-25-8835 LW-13193-6S322

LW- 12799-6S322*36 MS20822-6

GASKET, Inlet housingFUEL INJECTOR, RSA10-AD1 (2524318-10)FUEL INJECTOR, RSA10-DB1 (2524855-4)SEAL, 5/64 dia. section x 15/32 I.D.REDUCER, Flared tube (1/4 tubing)ELBOW, Adjustable, 45°

WASHER, 5/16 plainWASHER, 5/16 internal lockBOLT, 5/16-18 x 1-5/16 long, hex. hd.NOZZLE, InjectorMANIFOLD ASSY., Fuel

ELBOW, 1/4 tube & 1/8 NPT, 90°

NIPPLE, Union, 1/8 NPTNIPPLE, 1/8 tube to 1/8 NPT (restricted)

SPACER, Fuel manifold bracketBRACKET, Fuel manifoldWASHER, No. 10 lock, internalSCREW, No. 10-24 x 1/2 long, rd. hd.TUBE ASSY., Fuel manifold to nozzle, cyls. 1-2-5-6TUBE ASSY., Fuel manifold to nozzle, cyls. 3 & 4CLAMPCLAMPSCREW, 10-32 x 5/8 long, fill. hd.WASHER, No. 10 plainNUT, No. 10-32 self-lockingBRACKET, 90°

HOSE ASSY., Fuel injector to fuel manifoldBRACKET ASSY., Fuel line support

CLINCH NUT, No. 10-32 self-lockingCLAMPSCREW, No. 10-32 x 5/8 long, till. hd.SCREW, No. 10-32 x 1/2 long, rd. hd.WASHER, No. 10 plainNUT, No. 10-32 self-lockingCLIP, 7/8 I.D. for 1/4 dia. screw (cushion type)HOSE, Fuel pump to injectorHOSE, Fuel pump to injectorELBOW, 3/8 flared tube & 1/4 NPT, 90° (fuel pump outlet)

11111144461161224442

1212142

142112112312111

* Fuel injector with AMC unit.* * Assemble in fuel in ector outlet.

* Install elbow in fuel injector outlet port with fitting end up and 45° towards the front of the engine.* Install screws with head towards the front of the engine.

6-5

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-34

Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

21 22 20

2324

30-

/

Figure 24. FUEL INJECTOR, FUEL MANIFOLD AND INJECTION NOZZLES

6-6

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Avco Lycoming TEXTRONWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

SERVICE KIT SECTION

SEAL AND GASKET SET

Part No. Part Name Qty.

LW-13367MS29512-10MS16625-1081STD-111*STD-2217STD-10451691-C*8313LW-14260LW-1866166732*6719369164704557045771450*71481LW-1482071973720537209172210*7406572312*72711730327338373818LW-15619*75118*78443**LW-10332LW-12681LW-13077LW-13306STD-589*60096*MS29512-6STD-1272STD-213STD-294*20415*AN123857*74068*LW-15628**

SEAL AND GASKET SETSEAL, OilRING, Internal retainingGASKET, Oil suction screenSEAL, OilGASKET, Oil pressure relief valveGASKET, Fuel pumpGASKET, Vacuum & hydraulic pumpSEAL, Tachometer driveSEAL, Shroud tubeGASKET, Valve rocker shaft coverGASKET, Rocker box coverGASKET, Fuel pump adapterGASKET, Prop. drive gear plugGASKET, Oil filter extensionGASKET, Rocker box coverRING, Cyl. base sealRING, Internal retainingGASKET, Intake pipe flangeGASKET, GovernorRING, Oil sealGASKET, Air throttle housing"O" RING, Oil level gageRING, Oil seal, oil level gageRING, Seal intake pipeGASKET, Inlet housingLOCKPLATE, Alternator bracketGASKET, Accessory housingGASKET, ExhaustGASKET, Exhaust flangeSEAL, Crankshaft oil, splitLOCKPLATE, Crankshaft gearGASKET, MagnetoSPRING, Shroud tubeGASKET, Oil sumpGASKETGASKET, Fuel pump, ACSEAL, OilGASKETSEALGASKETGASKET"O" RING"O" RINGSEAL, Crankshaft oil, solid

121111121

241261116686121116111

1212111

2411111121111

* This part not applicable to AEIO-540-L1B5D.

** Refer to latest edition of Service Instruction No. 1324 for installation.

7-1

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

SERVICE KIT SECTION

CYLINDER, PISTON AND RING ASSEMBLY KIT

Part No. Part Name Qty.

LW-15485STD-160STD-1215*STD-1411STD-1925MS13997-3MS13998-37205060828LW-1866172710*66732*6719368795LW-140776711267113714817154972626LW-13322LW-136227385774241LW-1647569532LW-10207-SLW-11796LW-11797LW-12993LW-11775SSP-227262388LW-16740

CYLINDER, PISTON AND RING KITWASHERBOLTNUTSCREWKEY, Exhaust (rotator type)CAP, Valve stem, exhaustKEY, Valve intakePLUG, Piston pinSEAL, Shroud tubeCOVER, Valve rocker shaftGASKET, Valve rocker shaft coverGASKET, Rocker box coverCOVER ASSY., Rocker boxPIN, Piston pinROCKER ASSY., Exhaust valveROCKER ASSY., Intake valveSEAL, Cylinder baseWASHER, Valve rocker thrustSHAFT, Valve rockerSEAT, Valve spring, lower intake & exhaustVALVE, Intake (small head)RING, Piston, oil regulating (chrome)RING, Piston compression (chrome)SEAT, Valve spring, upper exhaustSEAT, Valve spring, upper intakePISTON (3 ring)SPRING, Valve outerSPRING, Valve innerCYLINDER ASSY., NitridedPLUG, Piston pinTAGCAPVALVE, Exhaust

1424821224221111112221121112212111

* This part not applicable to AEIO-540-L1B5D.

7-2

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

NUMERICAL INDEX

PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.

AN565B1032H5AN6-14AN6-16AN6-34AAN8-14AAN814-10LAN816-1 ODAN816-10-12DAN919-6AN931-14-20LW-25-0.81LW-25-0.94LW-25-1.00LW-25-1.13LW-25-1.13LW-25-1.25LW-25-1.25LW-25-1.50LW-25S1.50LW-25-1.75LW-31-0.94LW-31-1.16LW-31-1.31LW-31 H.75LW-10207-SLW-10292LW-10297LW-10299LW-10303LW-10313LW-10318LW-10320LW-10321LW-10324LW-10325LW-10329LW-10332LW-10341LW- 10344LW- 10442LW-10541LW-10799LW-10905LW-11713LW-11775LW-11796LW-11797LW-11956-SLW-11958-SLW-12098-0-170

Set ScrewBoltBoltBoltBoltPlugNippleFittingReducerGrommetBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltPistonGear Assy.Gear Assy.ShaftPlugGear Assy.Gear Assy.SleeveSpringGear Assy.SpacerShaftgear Assy.LockplateInsertBody Assy.GearGear Assy.SpacerHousing Assy.SpringPlugSpringSpringGuideGuideTube Assy.

1-115-35-31-131-72-72-72-76-53-72-32-36-11-136-12-36-31-131-131-135-35-26-55-33-11-101-101-102-72-72-32-62-61-101-101-101-72-12-31-111-112-52-11-53-13-53-53-33-36-5

LW-12098-0-200LW-12186LW-12534LW-12589LW-12596LW-12604LW-12681LW-12688LW-12798-4S242LW-12799-6S322LW-12993LW-13077LW-13193-6S322LW-13306LW-13322LW- 13430LW-13622LW-13641LW-13683LW-13749LW-13750LW-13885LW- 13896LW-13899LW-13904LW-13923LW-14021LW-14057LW-14077LW- 14078LW-14178LW-14260LW- 14324LW-14799LW- 14820LW-14828LW-14830LW-14875LW-14954LW-15571LW-15572LW-15592-5-05LW-15628LW-16266-10-13LW-16266-10-75LW-16266-10-75LW-16266-25-63LW-16266-25-88LW-16339LW-16341

Tube Assy.NutFuel PumpInsertBoltNippleGasketSeatHose Assy.HoseCylinder & Head Assy.SpringHoseGasketSeatBaffle Assy.ValveCushionBearingOil SeparatorOil ValveBearingPlugGearKitBushingShaftClipPinPinPlugSealAlternatorGage Assy.RingReducerBearingBracketBearingStarterStarterClampSealClampClampClampClampClipAdapterPipe

6-53-12-52-13-16-54-13-36-56-53-33-56-56-13-53-73-54-11-56-16-11-51-114-12-63-11-114-13-13-12-72-35-11-31-72-71-54-13-15-25-23-71-56-54-16-56-56-5616-3

8-1

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

NUMERICAL INDEX (Cont.)

PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.

LW-1 6342LW-1 6343LW-1 6344LW-16345LW-1 6475LW-16740LW-1 6768LW-1 6783-4LW-16878LW-1 6899LW-16918LW-16975LW-17758LW-17783LW-18061LW-1 8066LW-1 8085LW-18265LW-1 8641LW-18661LW-18667LW-19210LW-1 9298LW-19299LW-19332LW-1 9340LW-382698LW-620026-2LW-620028-2LW-620028-3LW-620029-6LW-620032-7LW-620036-4LW-620037-4LW-682560-13LW-684602-303LW-6851 26-107MS124703MS13997-3MS1 3998-3MS16625-1081MS16625-1100MS20822-4MS20822-6MS20823-6DMS29512-6MS29512-10STD-8STD-8STD-8

PipePipePipePipeSeatValvePipeGage Assy.AdapterHousing Assy.FittingSump and Baffle Assy.Crk'shaft & Plug Assy.Crk'shaft & C'wt. Assy.BoltFuel InjectorSpringNozzlePipeSealPinCounterweight Assy.RingRingConnecting Rod Assy.Camshaft Assy.Magneto KitClipClipClipClipClampClipClipMagnetoHarnessMagneto Ignition SystemInsertKeyCapRingRingElbowElbowElbowSealSealWasherWasherWasher

6-36-36-36-33-53-56-31-36-16-16-16-11-71-76-16-51-56-56-33-51-91-73-33-33-11-94-14-14-14-14-14-14-14-14-14-14-12-13-53-51-92-66-56-53-36-52-71-132-32-7

STD-8STD-8STD-8STD-19STD-33STD-33STD-35STD-35STD-35STD-35STD-35STD-35STD-35STD-82STD-148STD-160STD-160STD-1 60STD-1 60STD-1 60STD-213STD-251STD-251STD-425STD-425STD-475STD-475STD-475STD-475STD-475STD-475STD-514STD-551STD-557STD-596STD-596STD-670STD-670STD-670STD-670STD-678STD-678STD-684STD-690STD-692STD-692STD-692STD-696STD-713STD-714

WasherWasherWasherDowelWasherWasherWasherWasherWasherWasherWasherWasherWasherScrewNippleWasherWasherWasherWasherWasherSealWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherDowelPlugDowelNutNutNutNutLocknutNutWasherWasherNippleWasherScrewScrewScrewWasherPinPin

4-16-16-31-111-31-131-112-32-53-35-25-36-56-56-51-132-32-76-16-31-103-76-56-16-51-112-53-34-15-26-51-16-11-11-31-133-74-16-16-51-31-133-75-33-74-16-54-15-32-3

8-2

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Avco LycomingWilliamsport Division

AEIO-540-L IB5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

NUMERICAL INDEX (Cont.)

PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.

STD-784STD-798STD-860STD-872STD-872STD-1 045STD-1164STD-1173STD-1211STD-1272STD-1339STD-1339STD- 1409STD-1410STD-1410STD-1410STD-1410STD-1410STD-1411STD-1411STD-1411STD-1420STD-1686STD-1727STD-1774STD-1872STD-1874STD-1891STD-1925STD-1925STD-2025STD-2026STD-2029STD-2078STD-2090STD-2180STD-221725C-825C-1125C-1231C-1231C-1231C-1331C-1331C-1631C-1731C-1831C-1931CD-2038-13

PlugDowelScrewNutNutGasketInsertInsertPlugGasketPlugPlugNutNutNutNutNutNutNutNutNutNutScrewWasherPinInsertScrewClinch NutScrewScrewBoltBoltBoltDowelNutHoseOil SealStudStudStudStudStudStudStudStudStudStudStudStudStud

6-11-116-51-135-31-56-16-11-76-11-12-11-131-112-53-34-15-21-132-76-12-33-75-31-103-34-16-53-74-16-16-14-11-73-73-72-73-36-12-11-13-31-12-11-11-11-12-12-11-1

38-1538-1638-2238D-1750-15383-B1028-B1102110211021182-D483136032960430608036082860945610846116661166612976129861503623886273265007656146667066728667966711267113671146719368668687956915969164695326979670455704577148171549715967161071611719037190771973

StudStudStudStudStudNutBallPlugPlugPlugSpark PlugGasketShaftCoverStrapPlugPlugSpringThrust ButtonThrust ButtonImpellerImpellerSleeveCapCapRetainerPlugBushingWasherInsertRocker Assy.Rocker Assy.BushingGasketSpringCover Assy.Adapter Assy.GasketSeatDowelGasketGasketRingWasherWasherHookRetainerBushingWasherGasket

6-11-11-11-11-13-71-51-13-36-14-12-72-32-71-133-11-71-51-102-32-32-33-53-52-71-13-73-33-53-33-53-53-53-71-53-71-101-103-51-11-111-33-73-52-73-73-71-71-76-3

8-3

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Avco LycomingWilliamsport Division

AEIO-540-L1B5D PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

NUMERICAL INDEX (Cont.)

PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.

72050720537209172155-S72158722557230672343723447237872566726267270272703727117283472877730277303273136732497325073251732527338373455734567345773458735557355673557735587364873772738107381873857739657396674065

KeyGasketRingBushingBushingShroud Tube Assy.BracketStabilizerStabilizerCoverGearShaftTube Assy.Tube Assy.RingCoverBodyTube Assy.GasketBracketWasherWasherWasherWasherLockplateRod Assy.Rod Assy.Rod Assy.Rod Assy.Rod Assy.Rod Assy.Rod Assy.Rod Assy.RollerNozzle Assy.BushingGasketRingBracketSpacer"O" Ring

3-51-111-51-71-13-51-33-33-31-111-73-53-73-76-33-71-53-76-56-51-111-111-111-115-33-53-53-53-53-53-53-53-51-71-11-72-13-16-56-51-3

7424174278743097432374360744947488775338753807544475656-S75657-S756757602676118761557622076304765107653476539767347678877155774187744277467775797764477808778727790678290784437852407A1947413S1964916T1946853E1960054D1962766M1938511F20020-D1

RingBracket Assy.BearingStrutFlangePlateSpacerBaffle Assy.LinkAdapter Assy.BushingBushingExtensionBeltSpacerShaft Assy.StudElbowGasketShimSeatZip StrapRollerElbowManifold Assy.Fuel InjectorSpringSupport Assy.ScreenValve Assy.BushingSpacerPlunger Assy.SealSocketBracketGearSeatValve Assy.Oil FilterClampCrankcase Assy.

3-16-53-15-36-33-73-73-75-3

6-11-71-71-35-11-91-91-136-52-65-32-6

4-11-7

6-16-56-5

1-51-76-11-51-113-73-51-53-55-31-73-3

2-6

2-64-11-1

8-4

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